Hardware, Software and Networking Infrastructure Tata Infotech's Delhi (NEPZ) Center specializes in software development on Open System platforms and Unisys 2200 Series mainframe platforms. It has considerable computing and communication resources to provide trouble free software development and its range of software and hardware resources enable the center to provide enterprise-wide solutions. PC Resources The Delhi Center currently has about 180 PCs (Pentiums, 486s). All the PCs are connected over a Novell Netware or Windows for Workgroups LAN to allow sharing of printers and files. Most of these may be served by the Novell Netware server at any one point of time. The PCs also share files and laser printers by using Windows for Workgroups. 4 Pentium Servers 5 Windows NT Servers

IX Resources

• Five Unisys UNIX based machines (one Pentium based U6000/300, two U6000/35, one U6000/50 and one SMP 5400 system with dual Pentium processors), having a total memory of 248 MB RAM, 14 GB hard disk, and facility to connect around 140 PCs or terminals.
  
• SUN SOLARIS with Sun Ultra Sparc Processor, 143 MHz, 256 MB RAM, 6.3 GB Hard Disk, CD-ROM Drive.

The software available on these machines includes Windows Access, INFORMIX Online 7.0, INFORMIX Star and Embedded SQL for C, ORACLE 7.3, SYBASE 10.0, PowerBuilder 4.0, GuptaSQL Windows, MAPPER ver. 37R1, language compilers, 16 bit Ethernet Drivers, BSD Compatibility Package and Internet Utilities.

2200/400 The Unisys 2200/400 has 16 MW (64 MB) main memory, 5 GB of mass storage and a DCP/15 with 5 line modules. The peripherals include 3 U28N tape drives, 1 high speed (1200 lpm) printer, 48 SVR1126 terminals and 16 SVT1120 terminals. Additional terminals are available through Uniscope emulators on the U6000/35, U6000/50 and B2X machines.

1. Hardware and Software Resources

The Delhi Center has a wide range of Unisys platforms, including four UNIX based hosts, a 2200/400 host and more than 180 PCs. The 2200, U6000s, PCs and B2X are connected to form an integrated system to provide wide accessibility to the users.

2. Local Area Connectivity

All the hardware in the center including PCs, U6000s and the mainframe are interconnected for the purpose of file transfer, messaging and remote interactive sessions. The network in the center is connected to machines around the globe, using UNIDATS. The U6000s are connected to a LAN on the TCP/IP backbone, while over 180 PCs are connected to each other using Novell Netware and Windows for Workgroups connected to the TCP/IP backbone. The 2200/400 systems are connected to the TCP/IP backbone and all these are connected to the outside world using a 64 kbps satellite link with Internet, E-mail and Netscape facilities.

3. WAN Connectivity

The Delhi Center is connected via a 64 kbps satellite link to USA, for:

• Internet (unisys.com e-mail connectivity via Unisys, Mission Viejo)
  - Netscape
  -UNIGATE Access
  -UNIDATS (Unisys connectivity with DCP)
• Net2 (voice and fax connectivity to Unisys sites)

The equipment used for the connectivity comprises:

• Timeplex Multiplexer
• CISCO 2500 Routers
  
• DCP/15 Communication Processor

4. Communications Infrastructure

The communications infrastructure includes:

• Phones, Fax, Telex, Net2, E-mail Facilities
• MS-Mail and File Transfer Links
• Internet Connectivity via UUNET
• CISCO Router
• Domain Name Server (delpo1.unisys.com) via CISCO Router
• DCP/15 on UNIDATS Network (19.2 Kbps)